Wheel alignment setting procedure - misinterpretation

WHEEL ALIGNMENT SETTING PROCEDURE - MISINTERPRETATION

Model

All models

Affected vehicles

All vehicles

Date

1999-02-10

Reference

Bulletin 0008, CDS ref L8504bu

Bulletin text

All models

AFFECTED RANGE:

All vehicles

PROBLEM:

WHEEL ALIGNMENT SETTING PROCEDURE - MISINTERPRETATION

Incomplete wheel alignment setting alignment.

CAUSE:

Wheel alignment instructions supplied by various wheel alignment equipment suppliers are incomplete. Implications are that ‘run-out’ compensation is not required.

ACTION:

WHEEL ‘RUN-OUT’ COMPENSATION: The normal wheel setting procedure is to register the alignment equipment measuring head against the wheel rim. However this is not a tightly controlled and toleranced area of the wheel. Any dimensional variation in this area will result in a level of ‘run-out’ relative to the axis of the wheel, causing inaccurate geometry readings which will need to be compensated for.

When carrying out wheel alignment checks using ANY type of alignment equipment, ‘run-out’ compensation MUST be carried out. READINGS.

PARTS INFORMATION:

Not applicable

WARRANTY CLAIMS: Not applicable

Bulletin N o : 0008 L8504bu 1 10.02.99

procedure resulting in incorrect wheel

ALWAYS TAKE AN AVERAGE OF 3